33results about How to "Large coating thickness" patented technology

The present invention relates to a cemented carbide endmilling tool for semifinishing and finishing machining of hardened steels of HRC above 46, comprising a substrate and a wear resistant coating comprising a substrate and a wear resistant coating. The substrate, a, comprises 90-94 wt% WC in a binder phase of Co also containing Cr in such an amount that the Cr/Co weight ratio is 0.05-0.18. The wear resistant coating, b, is 1.8-9.5 µm thick, and comprises a first layer, c, of a hard and wear resistant refractory PVD AlMe nitride or carbonitride where Me is Zr, V, Nb, Cr or Ti having a thickness of 1.0-4.5 µm and an atomic fraction of Al to Me of 1.20-1.50, a second layer, d, of hard and wear resistant refractory PVD AlMe nitride or carbonitride where Me is Zr, V, Nb, Cr or Ti, having a thickness of 0.5-4.5 µm, and an atomic fraction of Al to Me of 1.30-1.70, and in between the first layer (c) and the second layer (d), a 0.05-1.0 µm thick low-A1 layer, (e), the thickness being less than 0.95 times the thickness of thinnest of the first layer (c) and the second layer (d), of an AlMe nitride or carbonitride where Me is Zr, V, Nb, Cr or Ti and an atomic fraction of Al to Me of 0-0.3.

In a method for coating workpieces with a coating material by a gas phase diffusion coating process, the coating material is conveyed in the form of a metal halide compound from a coating material source (9A, 9B, 9C) to the workpiece (7) by means of a metal halide gas circulation flow (F). The gas circulation flow (F) is physically induced due to convection by establishing a temperature gradient between the workpiece (7) and the coating material source (9A, 9B, 9C), and is reinforced by the chemical reactions taking place. An apparatus for carrying out a gas phase diffusion process includes a reaction vessel (3) enclosing a reaction chamber (1) in which the workpiece (7) is arranged. The apparatus further includes a metal halide generator (9A, 9B, 9C) arranged in the reaction chamber (1), and a heater (5) as well as a cooling device (6) and a thermal conduction arrangement (8) for establishing a temperature gradient between the workpiece (7) and the metal halide generator (9A, 9B, 9C). The method and apparatus produce a diffusion coating having a uniform thickness and a high quality smooth surface, even on large workpiece surfaces.

The invention discloses an electron beam radiation curing coating for metal heavy anti-corrosion. The coating is prepared from, by mass, 50%-80% of oligomer, 0.1-0.5% of reactive diluent, 1-10% of functional filler, 5-20% of antirust dyestuff and 5-15% of auxiliary filler, and the total mass percentage of the components is 100%. The curing coating for metal heavy anti-corrosion is cured by electron beam radiation, has the advantages of high efficiency and energy conservation, environment friendship and convenient operation, cured depth of the coating is high, thickness is big, and the adhesive force between the coating and the substrate is strong. A conductive carbon material is doped in the curable coating, thus the problem of metal heavy anti-corrosion is solved while electron beam energy absorption is avoided, and it is guaranteed that cured efficiency is not affected. The electron beam radiation curing coating for metal heavy anti-corrosion has excellent wear-resistance and corrosion-resistance, can be applied to the field of metal heavy anti-corrosion anti-corrosion, and is particularly applicable to the field of maritime work heavy anti-corrosion.

The invention relates to the technical field of electric heating appliances, and discloses a non-stick coating and a preparation method thereof, a pot, and cooking equipment. The method comprises: (1)pre-treating a matrix; (2) pre-heating the surface of the matrix obtained in the step (1); and (3) mixing silicon carbide powder and fluororesin powder to obtain a powder mixture, and carrying out plasma spraying treatment with the powder mixture to form a non-stick coating on the surface of the matrix. The non-stick coating of the invention is gray-black, and has advantages of scale resistance,high surface hardness, high coating adhesion, good scratch resistance, good corrosion resistance, good wettability, good heat transfer performance, long service life and the like.

The invention relates to the technical field of electric heating appliances, and discloses a non-stick coating and a preparation method thereof, a pot, and cooking equipment. The method comprises: (1)pre-treating a matrix; (2) pre-heating the surface of the matrix obtained in the step (1); and (3) mixing metal oxide powder and fluororesin powder to obtain a powder mixture, and carrying out thermal spraying treatment with the powder mixture to form a non-stick coating on the surface of the matrix, wherein the metal oxide powder comprises alumina powder and tetravalent metal oxide ceramic powder. The non-stick coating of the invention has advantages of high surface hardness, high coating adhesion, good scratch resistance, good corrosion resistance, good wettability, long service life and the like.

The invention discloses a gradual intensity electron beam radiation coating solidification process. The invention bases on the solidification technics of electron beam radiation, adopts a solidifying form of gradual intensity, and mainly is used for solidifying coating with thickness at 100Mum-500Mum, the electron beam intensity is accurately controlled by a computer program, and achieves a dynamic coordination with the solidified thickness of the coating. On one hand, the process bases on the solidification of electron beam radiation, solves the problems of high energy consumption and inadequate depth by solidifications of traditional ultraviolet ray, one the other hand, the process adopts a solidifying form of gradual intensity, respectively solidifies the surface and the insides of the coating, further solves the problem of unenven solidifications of an inside and outside layer membrance when intermittently solidifying ultraviolet-electron beam, thereby increases the direct adherence force of the coating and a base material, enables the coating to possess superior abrasion tolerance and anti erosion property, meanwhile the process reduces unnecessary energy consumption when solidifying the electron beam at a single intensity. The obtained coating from the provided solidification process can be applied to the field of metal corrosion repreventions, meanwhile can achieve the coating and dressing of rusty surfaces.

The invention belongs to the fields of grouting technology of mines and underground sewage treatment, and provides a cement-based pollutant-blocking grouting material and a preparation method thereof. The cement-based pollutant-blocking grouting material comprises 40-50% of cement, 32-40% of water, 2-5% of calcium oxide, 10-15% of an active filler, 1-2% of gas-forming coated particles, 8-13% of sodium silicate, 1-2% of basalt fibers, 0.5-1% of guar gum, and 0.1-0.5% of sodium dodecyl sulfate, wherein the gas-forming coated particles are aluminum powder particles with kerosene isolating layers, and the active filler is selected from zero-valent iron, magnetite and activated carbon. The material can be used for reinforcing a roadway and inhibiting diffusion of underground pollutants in a mining area at the same time; the material can be injected into potential water passing channels around a mine in advance through a grouting technology; when the material reaches a designated place, dense fine bubbles can be rapidly generated in the material, the whole slurry is rapidly hydrated and expanded, and strength is obtained; and after mining is finished, the level of underground water rises to carry pollutants in a mining area into the underground water, and the material can block migration of the pollutants through a large specific surface area of a porous structure and active substances contained in the material.

The invention discloses a continuous vacuum electron beam coating method and belongs to the technical field of coating. The invention aims to provide a method of coating a thick film with low cost, nopollution, high efficiency and high quality. The method comprises the following steps: putting a coated metal in a continuous vacuum electron beam coating device, wherein a substrate material operates in an electron beam furnace through an uncoiler and a winding machine; heating the substrate material to 400-1200 DEG C; and setting the electron beam power to be not smaller than 20 KW and controlling the vacuum degree of the working chamber of the electron beam furnace at 10-10<-3>Pa to coat, and cooling the coated film to be not higher than 300 DEG C to obtain the coated composite material. The method can be used for obtaining corrosion-resistant coated composite material which is large in coated thickness and has the characteristics of being low in cost, pollution-free, high in speed andhigh in efficiency.

The invention relates to an epoxy vinyl ester micro compound resin and preparing method thereof. The resin is characterized by that epoxy vinyl ester micro compound resin mainly comprises epoxy vinyl ester resin, quartz sand, dispersant, defoaming agent and leveling agent. The preparing method of epoxy vinyl ester micro compound resin comprises the following step: (1) Weighting raw materials according to claim 2 formula; (2) mixing and stirring raw materials after the raw materials are added into mixing tank; (3) adding the raw materials into high-speed dispersing machine for dispersion; (4) adding the raw materials into grinding miller for grinding; (5) packaging all raw materials in different packages and placing them in cool and dry place for later use. In the preparing method, high-speed dispersing can mix the chemical materials with quartz powder completely and evenly, grinding can open the particles of original resin to make the particles form a new combination with the high-speed dispersed mixture which is added later, in order to form epoxy vinyl ester micro compound resin.

The invention relates to lip enlarging glaze containing prickly ash peel extract and a preparation method of the lip enlarging glaze. The lip enlarging glaze comprises the following components: a lipenlarging component, grease, a thickening agent, a bacteriostatic agent and a film-forming agent, wherein the lip enlarging component comprises the prickly ash peel extract. The lip enlarging glaze provided by the invention contains the lip enlarging component containing the prickly ash peel extract, and prickly ash as a rutaceous plant is rich in unsaturated fatty acid, can improve hemorheology,is usually used in edible seasonings, and is natural and edible. The fruit peel extract is mild and safe when being used on the skin, and does not cause strong burning feeling like capsaicin. The prickly ash peel extract is added into the lip enlargement product for the first time, and the instant lip enlargement effect is achieved by enhancing blood circulation of the lip.

The invention relates to a method for coating cavity walls, in particular cylinder bores of engine blocks. In the method, a coating is applied to a cavity wall using a coating lance. In addition, a cavity diameter is measured using a measuring apparatus. According to the invention, the method is characterized in that at least a plurality of diameter values of a first cavity are measured at different heights of the first cavity using the measuring apparatus, and in that a coating of variable thickness is applied to a wall of the first or a second cavity using the coating lance, the thickness of said coating of variable thickness being dependent on the determined diameter values. The invention additionally describes a corresponding coating system.

The invention belongs to the technical field of coating, relates to a vacuum electron beam coating method and aims to provide a low-cost, pollution-free, high-efficiency and high-quality thick coatingmethod. The method in which vacuum electron beam coating is adopted includes steps: adding coating metal into a vacuum electron beam coating device, taking an iron-base material as a substrate material, heating the substrate material to 400-1200 DEG C, setting electron beam power to be not smaller than 20KW, controlling a vacuum degree of an operating cavity of an electron beam furnace in a rangeof 10-10<-3>Pa, coating, and cooling to 300 DEG C or below to obtain a coating composite material. By adoption of the vacuum electron beam coating method, the coating composite material high in coating thickness and resistant to corrosion can be obtained, and low cost, freeness of pollution, high speed and high efficiency are realized.

The invention belongs to the technical field of coating, relates to a vacuum electron beam double-roller pressing coating method and aims to provide a low-cost, pollution-free, high-efficiency and high-quality thick coating method. The method in which vacuum electron beam double-roller pressing coating is adopted includes steps: adding a coating material into a vacuum electron beam double-roller pressing coating device, heating a substrate material to 400-1200 DEG C, setting electron beam power to be not smaller than 20KW, controlling a vacuum degree of an operating cavity of an electron beamfurnace in a range of 10-10<-3>Pa, coating, performing double-roller pressing in a coating process, and cooling to 300 DEG C or below to obtain a coating composite material. By adoption of the vacuumelectron beam double-roller pressing coating method, the coating composite material high in coating thickness and jointing force and resistant to corrosion can be obtained, and low cost, freeness of pollution, high speed and high efficiency are realized.